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Publication numberUS5155806 A
Publication typeGrant
Application numberUS 07/458,573
Publication dateOct 13, 1992
Filing dateDec 29, 1989
Priority dateMar 15, 1989
Fee statusPaid
Publication number07458573, 458573, US 5155806 A, US 5155806A, US-A-5155806, US5155806 A, US5155806A
InventorsAnthony Hoeber, Alan Mandler, Norman Cox, Timothy Shea, Rick Levine
Original AssigneeSun Microsystems, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Method and apparatus for displaying context sensitive help information on a display
US 5155806 A
Abstract
A central processing unit (CPU) is provided and is coupled to a display for displaying graphic and other data. The CPU is further coupled to a pointer control device which permits a user to selectively position a pointer at a desired location on the display, and signal the CPU of selections in accordance with the teachings of the present invention. Images are generated in the form of "windows" by the CPU which include standard window features as well as text, icons, and buttons whch correspond to functions to be executed by the CPU. The selection of certain buttons results in the generation and display of a menu which includes a plurality of functions which may be chosen by a user. Help information may be obtained by a user by positioning the pointer on the display using the pointer control device over an area of the window which the user desires the help information. After placing the pointer over a desired area, which may include by way of example an icon, window function, or other window image, the user depresses a predefined help keep on a keyboard coupled to the CPU. The CPU then locates a help description which corresponds to the object or area over which the pointer has been placed. The CPU displays the an image of the selected area and the appropriate help description within a help window.
Images(4)
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Claims(10)
What is claimed is:
1. In a computer controlled display system having a display coupled to a central processing unit (CPU) for displaying images, a method for displaying help information pertaining to said images displayed, comprising the steps of:
(a) generating a plurality of images on said display;
(b) positioning a pointer on said display using a pointer control device coupled to said CPU, said pointer being placed over at least a portion of a first image on said display;
(c) providing a first signal to said CPU to request help information pertaining to that portion of said first image over which said pointer has been placed;
(d) generating and displaying a help window on said display, said help window including a description of said portion of said first image over which said pointer has been placed, said description being a function of the location of said pointer, and a copy of that portion of said first image which is located within a predetermined radius from said pointer;
(e) providing a second signal to said CPU to dismiss said help window such that said help window is no longer displayed thereby allowing said help window to be dismissed after said description has been read by a user.
2. The method as defined by claim 1, wherein said step (c) comprises said user depressing a predetermined help key on a keyboard coupled to said CPU.
3. The method as defined by claim 2, wherein said help window in step (d) includes a first area for the display of said description and a second area within which is disposed a copy of the portion of the image which is located within a predetermined radius from the pointer.
4. The method as defined by claim 3, wherein said images on said display are disposed within windows.
5. The method as defined by claim 1, wherein said portion of said image is displayed in said help window within an image of a magnifying glass.
6. In a computer controlled display system having a display coupled to a central processing unit (CPU) for displaying images, an apparatus for displaying help information pertaining to said images to a user of said system, comprising:
first display means coupled to said CPU for generating and displaying said images on said display;
pointer control means coupled to said CPU for selectively positioning a pointer on said display;
signal generation means coupled to said CPU for providing a first signal to said CPU to request help information once said pointer has been placed over at least a portion of a first image on said display;
second display means coupled to said CPU for generating and displaying a help window on said display, said help window including a description of said portion of said first image over which said pointer has been placed, said description being a function of the location of said pointer and a copy of that portion of said first image which is located within a predetermined radius from said pointer;
said signal generation means providing a second signal to said CPU to dismiss said help window such that said help window is no longer displayed thereby allowing said help window to be dismissed after said description is no longer required by said user.
7. The apparatus as defined by claim 6, wherein said help window includes a first area for the display of said description and a second area within which is disposed a copy of the portion of the image which is located within a predetermined radius from the pointer.
8. The apparatus as defined by claim 6, wherein said images on said display are disposed within windows.
9. The apparatus as defined by claim 6, wherein said portion of said image is displayed within an image of a magnifying glass.
10. The apparatus as defined by claim 6, wherein said signal generation means includes a predetermined help key disposed on a keyboard coupled to said CPU.
Description
BACKGROUND OF THE INVENTION

1. RELATED APPLICATIONS

The present Patent Application is a Continuation-In-Part of U.S. patent application Ser. No. 07/323,669, filed Mar. 15, 1989, now abandoned. The present invention is related to U.S. patent application Ser. No. 07/458,596, filed Dec. 26, 1989, now abandoned, which is a Continuation-In-Part of U.S. patent application Ser. No. 07/323,774, now abandoned filed Mar. 15, 1989, which was continued in U.S. patent application Ser. No. 07/619,665, filed Nov. 28, 1990 entitled "Method and Apparatus for Selecting Button Functions and Retaining Selected Options on a Display" and U.S. patent application Ser. No. 07/458,775, filed Dec. 29, 1989, now abandoned, which is a Continuation-In-Part of U.S. patent application Ser. No. 07/323,775, filed Mar. 15, 1989, entitled "Method and Apparatus for Selecting and Executing Defaults in a Window Based Display System", and hereby refers to, and incorporates by reference the contents of the above-referenced applications.

2. FIELD OF THE INVENTION

The present invention relates to apparatus and methods for displaying and manipulating graphic information, and more particularly, the present invention relates to a computer controlled display system for displaying help information based on the positioning of an on-screen pointer over a displayed image.

3. ART BACKGROUND

It is common for current generation computer display systems to utilize multiple "windows" displayed on a cathode ray tube (CRT) display in which combinations of text and graphics are disposed to convey information to a user. The windows may take the form of a variety of objects such as a file folder, loose-leaf binder, or simple rectangle, and the windows may overlap one another with the "top" window fully visible constituting the current work file. These so-called "object oriented" displayed systems utilize various icons which symbolically indicate the type of operation the computer system will execute if the icon function is chosen. Frequently, these icons are disposed within a window on the display. The user may delete information from the window, move data from one window to another, and generally operate on the window as if an actual file in an office is being manipulated. Numerous object oriented systems exist today and are displayed on computers manufactured by the assignee, Sun Microsystems, Inc., as well as other manufacturers.

In the event a user requires help in determining what command is appropriate to achieve the desired computer function, or what a particular icon or "desktop" function represents, many systems refer the user to printed manuals for reference. Another attempt to assist the user in an object oriented computer system is the use of a "Help" command or key. Upon encountering difficulty, the user in such systems may press a predefined key to access a help function. The help function simply displays one or more screens of various commonly used commands, or describes the various functions available, in the computer display system. Generally, a help screen in prior art systems is simply a synopsis of the description of the command normally found in a written manual accompanying the computer system. The help display is typically stored on disk or in the memory of the computer system.

Another effort to make computer display systems more personal and self contained is found in the "Star User Interface: An Overview", Smith, et al., National Computer Conference, 1982. The Xerox 8010 Star information system introduced in April of 1981 incorporated a Help key on the computer keyboard. A user depressing the Help button on the Star system was shown a screen displaying the Help table of contents. The Star further included a context dependent invocation of the help function in which the command menu in every window contained a "?" command. By invoking the "?" command, the Star system displayed that part of the help documentation describing the window, its commands and its functions. Other "?" commands appeared in various message areas of the screen; such that invoking these "?" help commands resulted in the display of a description of the method which was related to the particular help command chosen. For example, a help command disposed adjacent to a window would result in a help message describing what a window comprised in the Star system. In other words, selecting a "?" on the display resulted in the display of the associated help documentation relating to the particular help icon "?" chosen.

As will be described, the present invention provides apparatus and methods to permit a user to invoke a help function on a computer display system. The help message displayed by the present invention is context sensitive based on the position of the pointer on the screen. The pointer, in turn, is controlled through the use of a pointer control device operated by a user. Accordingly, by simply placing or pointing the pointer at a particular object or area on the screen and depressing a help key, a help window is displayed which describes the particular object or area which the pointer has been placed over.

SUMMARY OF THE INVENTION

An apparatus and method is disclosed which has application for use in computer controlled display systems, and in particular, display systems having object oriented graphic interfaces. A central processing unit (CPU) is provided and is coupled to a display for displaying graphic and other data. The CPU is further coupled to a pointer control device which permits a user to selectively position a pointer at a desired location on the display, and signal the CPU of selections in accordance with the teachings of the present invention. Images are generated in the form of "windows" by the CPU which include standard window features as well as text, icons, and buttons which correspond to functions to be executed by the CPU. The selection of certain buttons results in the generation and display of a menu which includes a plurality of functions which may be chosen by a user. Help information may be obtained by positioning the pointer on the display using the pointer control device over an area of the window which the user desires the help information. After placing the pointer over a desired area, which may include by way of example an icon, window function, or other window image, the user depresses a predefined help key on a keyboard coupled to the CPU. The CPU locates a help description which corresponds to the object or area over which the pointer has been placed. The CPU displays the appropriate help description within a help window. The help window further includes a magnifying glass icon within which is displayed a copy of the object or area over which the pointer has been placed. The image displayed within the magnifying glass icon corresponds to the help information displayed in the textural portion of the help window. The help window further includes a pushpin mark, such that the placement of the pointer over the pushpin mark, and the momentary depression and release of a switch on the pointer control device, results in the CPU dismissing the help window such that it is no longer displayed.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates a computer incorporating the teachings of the present invention.

FIG. 2 shows one arrangement of program storage for the system of FIG. 1.

FIG. 3 illustrates the selection of an icon prior to invocation of the help function.

FIG. 4 illustrates a help window which is context dependent based upon the location of the pointer on the display screen.

FIG. 5 is a flow chart illustrating the sequence of steps utilized by the present invention to display a context sensitive help window.

NOTATION AND NOMENCLATURE

The detailed descriptions which follow are presented largely in terms of display images, algorithms, and symbolic representations of operations of data bits within a computer memory. These algorithmic descriptions and representations are the means used by those skilled in the data processing arts to most effectively convey the substance of their work to others skilled in the art.

An algorithm is here, and generally, conceived to be a self consistent sequence of steps leading to a desired result. These steps are those requiring physical manipulations of physical quantities. Usually, though not necessarily, these quantities take the form of electrical or magnetic signals capable of being stored, transferred, combined, compared, and otherwise manipulated. It proves convenient at times, principally for reasons of common usage, to refer to these signal as bits, values, elements, symbols, characters, images, terms, numbers, or the like. It should be borne in mind, however, that all of these and similar terms are to be associated with the appropriate physical quantities and are merely convenient labels applied to these quantities.

Further, the manipulations performed are often referred to in terms, such as adding or comparing, which are commonly associated with mental operations performed by a human operator. No such capability of a human operator is necessary, or desirable in most cases, in the operations described herein which form part of the present invention. In the present case, the operations are machine operations performed in conjunction with a human operator. Useful machines for performing the operations of the present invention include general purpose digital computers or other similar devices. In all cases there should be borne in mind the distinction between the method operations of operating a computer and the method of computation itself. The present invention relates to method steps for operating a computer and processing electrical or other physical signals to generate other desired physical signals.

The present invention also relates to apparatus for performing these operations. This apparatus may be specially constructed for the required purposes or it may comprise a general purpose computer selectively activated or reconfigured by a computer program stored in the computer. The algorithms presented herein are not inherently related to any particular computer or other apparatus. In particular, various general purpose machines may be used with programs in accordance with the teachings herein, or it may prove more convenient to construct more specialized apparatus to perform the required method steps. The required structure for a variety of these machines will appear from the description given below.

DETAILED DESCRIPTION OF THE INVENTION

The present invention discloses apparatus and methods for displaying help information pertaining to an image on a computer display. In the following description, numerous specific details are set forth such as computer display system elements, display formats, sample data, etc. in order to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that the present invention may be practiced without these specific details. In other instances, well known circuits and structures are not described in detail in order not to obscure the present invention unnecessarily.

FIG. 1 illustrates a computer based system for generating graphic images in accordance with the teachings of the present invention. Shown is a computer 10 which comprises three major components. The first of these is an input/output (I/O) circuit 12 which is used to communicate information in appropriately structured form to and from other portions of the computer 10. In addition, computer 10 includes a central processing unit (CPU) 14 coupled to the I/O circuit 12 and a memory 16. These elements are those typically found in most general purpose computers and, in fact, computer 10 is intended to be representative of a broad category of data processing devices. Also shown in FIG. 1 illustrates a keyboard 18 to input data and commands into computer 10, as is well known. A magnetic disk 20 is shown coupled to I/O circuit 12 to provide additional storage capability for the computer 10. It will be appreciated that additional devices may be coupled to computer 10 for storing data such as magnetic tape drives, bubble memory devices, as well as networks which are in turn coupled to other data processing systems. As is well known, disk 20 may store other computer programs, characters, routines, etc., which may be accessed and executed by CPU 14. A raster display monitor 24 is shown coupled to the I/O circuit 12 and is used to display images generated by CPU 14 in accordance with the present invention. Any well known variety of cathode ray tube (CRT) display may be utilized as display 24. A pointer control device 28 is also shown coupled to computer 10 through I/O circuit 12. Pointer control device 28 includes switches 30, 32 and 34 for signalling CPU 14 in accordance with the teachings of the present invention. Pointer control device 28 (commonly known as a "mouse") permits a user to select various command modes, modify graphic data, and input other data utilizing switches 30, 32 and 34. More particularly, pointer control device 28 permits a user to selectively position a pointer 36 at any desired location on display 24 by movement of the pointer control device 28 over a surface 40. In the presently preferred embodiment, pointer control 28 utilizes a well known optical method for signalling CPU 14 of positional changes of pointer 36 by movement of pointer control over a grid disposed on surface 40. However, it will be appreciated that a variety of well known pointer control devices may be utilized by the present invention, including other pointer control devices such as mechanical mice, track balls, joy sticks, etc.

FIG. 2 shows one arrangement of major programs contained within the memory 16 illustrated in FIG. 1. In particular, there is shown a frame buffer 50, which comprises a bit map of display 24. The frame buffer 50 represents the video memory for the display 24, wherein, each storage location in the frame buffer 50 corresponds to a pixel on the display 24. Thus, the frame buffer comprises a two dimensional array of points having known coordinates corresponding to the pixels on the raster display. In its simplest form, frame buffer 50 comprises a contiguous block of memory which is allocated such that each memory location is mapped onto the corresponding pixel on the rastor display 24. Memory 16 also includes a variety of other programs 54 for execution by the CPU 14. For example, a variety of control, display, and calculating programs implementing the operations and routines described in this Specification may be stored in memory 16, as well as monitor control programs and disk operating systems. Moreover, memory 16 further includes space for other programs and spare memory 56 which may be used for a variety of other well known functions and operations in data processing systems.

Referring now to FIG. 3, in the presently preferred embodiment, a variety of "windows" may be displayed on display 24. As shown in FIG. 3, a representative window includes a variety of data within the bounded window, in the form of graphics, text and symbols. For example, in FIG. 3 there is shown a representative base window identified generally by the numeral 80, which is in the form of a rectangular area on display 24. In the example of FIG. 3, window 80 includes a window title 82 (in the present example "edit") and a Window menu button 84 which is displayed at the left side of the header in the window. Upon selection of the Window menu button a variety of menu items are displayed having functions related to the window including a function that closes the window. Preferably the close function is the default menu item for the window such that it can be easily selected using the default function as described in copending U.S. patent application Ser. No. 07/323,775, filed Mar. 15, 1989, entitled "Method and Apparatus for Selecting and Executing Default in a Window Based System". By placing pointer 36 on the Window menu button 84, and momentarily activating pointer control switch 30 to select the option "close", the window is closed. Once closed, the window 80 is no longer displayed on display 24 and is represented by an icon identifying the window.

A control area 86 is provided for the display of button functions, which will be described in more detail below. Base window 80 further includes resize corners 90 through 93 which are used to shrink or expand the borders of window 80, thereby changing the area of the window without changing the relative size of the controls, fonts, icons, etc. displayed within window 80. CPU 14 further displays the image of a vertical scrollbar 100, as shown, which permits text, graphics and the like within the working area 106 of window 80 to be scrolled in the direction in which the scrollbar is "pulled". The scrollbar, in the presently preferred embodiment, may be moved by placing pointer 36 over the arrows of the scrollbar 100 and activating a selected switch on pointer control device 28, or alternatively, by placing the pointer 36 on the scrollbar, depressing a preselected switch on pointer control device 28, and moving the pointer control device in the direction in which the text or the like within the working area 106 is to be scrolled. Although not shown, window 80 may also incorporate the use of a horizontal scrollbar to selectively scroll horizontally through the text, graphics, etc. disposed within the working area 106.

As shown in FIG. 3, and also referring to FIG. 1, a plurality of button functions may be disposed within window 80. Although the button functions (in the present example entitled: "file", "edit", "view", "find", "properties" and "delete") are illustrated in area 86, the button control functions may be displayed in other control areas as well as on menus, as will be described below. Although illustrated horizontally, button functions may also be arrayed vertically within the window, and button function names may be in the form of text and/or graphics. In the presently preferred embodiment, button functions may take the form of a single button function, menu buttons, window buttons and abbreviated buttons. A single button function is used for a single command to be executed by CPU 14 (for example "delete"). A menu button is used to group commands together in logical sets on a menu which is displayed when the particular menu button is chosen by a user. Typically, the label on the menu button is the title or category name of the group of commands on the menu and submenus, and not one of the commands (for example, "edit").

A window button opens a pop-up window. A window button is represented by a window mark an ellipsis (. . . ) following the button's label suggesting "more to come". An abbreviated button provides a compact form of a button (e.g. single button function, menu button and window button) when it is desirable to omit the label inside the button to save space by ommitting the label altogether or to place the label outside the button. For example, the Window menu button 84 is an abbreviated menu button.

Appropriate programming of computer 10 is provided such that a plurality of menu buttons and/or single buttons are displayed within window 80. In the example of FIG. 3, window 80 includes buttons, identified as "edit", "file", "view", "find", "properties", and "delete". The placement of pointer 36, over the "edit" menu button of FIG. 3 by a user utilizing pointer control device 28, and the activation of a switch (for example, switch 34) on the pointer control device 28 by a user, results in computer 10 generating and displaying a menu 120 below the corresponding menu button (in the present example, "edit") as illustrated. As shown, menu 120 includes a plurality of menu items which correspond to executable functions by CPU 14. In the present example, menu items disposed within menu 120 include such functions as "cut", "copy", "paste", "again" and "undo", which may be chosen by a user utilizing pointer control device 28. Menu items are similar to buttons and provide the same functionality as command buttons, window buttons and menu buttons. In addition, menus include settings which may be set or changed. The selection of a menu item by a user results in the immediate execution of the function by CPU 14.

As previously discussed, a user may desire information related to a particular object, area, or function within window 80 in order to assist the user in operating the computer display system. In the present invention, the user places pointer 36 over an area of window 80 for which the user desires help information. In the example of FIG. 3 (and the sequence of steps illustrated in FIG. 5), the user has placed pointer 36 over a pushpin icon 130 (see U.S. patent application, Ser. No. 07/458,596, filed Dec. 26, 1989 now abandoned, for a description related to pushpin 130). Upon placing pointer 36 over pushpin icon 130, the user depresses a predefined help key on keyboard 18 to invoke the help function. The depression of the help key 135 on keyboard 18 results in the generation and display of a help window. Upon the depression of key 135, CPU 14 examines that portion of the window 80 which is at the location of pointer 36. In the present example, CPU 14 determines that the pushpin 130 is below pointer 36. The CPU 14 then utilizes a lookup table within memory 16 to locate the appropriate help description relating to the pushpin 130. CPU 14 retrieves the appropriate help information relating to the object/image over which pointer 36 has been placed, and generates a help window.

Referring now to FIG. 4, the help window which, in the present example, describes pushpin 130 is illustrated. As shown, the help window includes the standard elements of a pop-up window, including a title bar 140. The help window also includes pinned pushpin 145. The help window in the presently preferred embodiment is sufficiently large to display fifty characters per line of text and ten lines of help text within the help window 138. If the help text to be displayed exceeds ten lines, the help window 138 will include a scrollbar and resize corners similar to that illustrated in FIG. 3 for window 80. A "more" button 148 is provided if the particular help description includes additional help text which may be chosen by the user in a similar fashion to other buttons within a window of the present invention. In addition, upon the display of help window 138, CPU 14 places pointer 36 over pushpin 145. The depression of a key on pointer control device 28 in conjunction with having the pointer 36 over the pushpin 145 results in the dismissal of the help window. Upon the dismissal of the help window, such that it is no longer displayed, pointer 36 returns to its last location (in the present example over pushpin 130).

In addition to the written text, help window 138 further includes a magnifying glass icon 150 in which is displayed an image of the object which is the subject of the help request. In the example of FIG. 4, an image of pushpin 130 is illustrated along with a copy of all pixels comprising window 80 within a predefined radius R from pushpin 130. In the presently preferred embodiment, CPU 14 copies pixels within a diameter D which corresponds to the diameter of the magnifying glass icon 150. Thus, the object over which pointer 36 has been placed, along with the area immediately surrounding the object, is copied from the bit map of frame buffer 50 and redisplayed within the magnifying glass icon 150 within the help window 138. Accordingly, in addition to viewing the help text, the user is also provided with an image of the object over which pointer 36 has been placed, which is the subject of the displayed help text. It will be appreciated by one skilled in the art that, unlike prior art help systems, the present invention permits a user to place pointer 36 over any area, icon, or image within a window displayed on display 24 and obtain help information as a function of the location of the pointer 36. Unlike the prior art systems, the present invention does not require the placement or selection "?" command to invoke the help documentation. The present invention provides a help system which is sensitive to the context of the image over which pointer 36 has been placed.

Accordingly, the present invention has been disclosed which provides apparatus and methods whereby context sensitive help information may be obtained by a user of a computer display system. While the present invention has been described with reference to FIGS. 1-5, it will be appreciated that the figures are for illustration only and do not limit the spirit and scope of the invention.

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Classifications
U.S. Classification715/711, 715/839, 715/708, 715/781, 715/804, 345/629
International ClassificationG06F9/44
Cooperative ClassificationG06F9/4446, G05B2219/23121
European ClassificationG06F9/44W2
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Owner name: SUN MICROSYSTEMS, INC., CALIFORNIA
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